HUNTSVILLE, Alabama -- Mother Nature gave commuters a dramatic light show as thunderstorms moved through the Tennessee Valley Wednesday afternoon.

The showers moved in with embedded thunderstorms as the sun was setting and created a number of rainbows around the valley.

A rainbow appears over Buckhorn's stadium as thunderstorms moved through the Tennessee Valley Wednesday afternoon. (Eric Schultz / eschultz@al.com)Eric Schultz

The humidity remains high and the greatest threat from the storms, outside of the lightning, will be locally heavy rain. There are numerous rain-cooled boundaries out there so the chance of a passing shower can't be ruled out during the overnight and the early morning hours.

Partly to mostly cloudy skies with warm and muggy conditions will persist across the central Tennessee Valley overnight. A few lingering showers and thunderstorms will be possible early this evening across the eastern half of the region.

Patchy dense fog will likely develop early Thursday morning, especially in river valleys and other locations that experience significant rainfall today. Lows will generally be in the upper 60s/lower 70s.

Thursday looks hot and humid with highs near 90 degrees with the chance of storms around 30%. But, if your caught in one of the storms, it could rain very hard.